See also:

Maintenance
The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. ...

Reprogramming individual buttons
1. Switch on the ignition. 2. Press and hold the interior rearview mirror button to be programmed. 3. As soon as the interior rearview mirror LED starts flashing slowly, hold the hand-held tra ...

Saving a function
1. Highlight the function via the iDrive. 2. Press the desired button for more than 2 seconds. ...